Blind-tenon.



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CHARLES MILLER, OF DEL RIO, TEXAS.

BLIND-TENON.

Specication of Letters Patent.

Patented Feb. 11, 1908.

Application filed August 9.1907- Serial No. 887.945-

To a/ZZ whom it may concern:

Be it known that I, CHARLES MILLER, a citizen of the United States ofAmerica, residing at Del Rio, in the county of Valverde and State ofTexas, have invented new and useful Improvements in Blind-Tenons, ofwhich the following is a specification. p

This invention is a metallic blind tenon, for use on the end of a blind.slat to pivot the slat in the frame of the blind, and the said inventionconsists in the construction, combination and arran 'ement of deviceshereinafter described and c aimed.

i -The object of my invention is to provide a metallic tenon for blindslats, which is entirely inconspicuous when applied to the end of ablind, is exceedingly strong and durable, may be readily manufactured atslight cost,

may be applied to a slat when new, in lieu of f the ordinary integralblind slat tenon, and which may be substituted for a wooden tenon whichhas been broken from the end of a slat, to enable the slat to becontinued in use, and without the necessity of having` to lirst removethe dowel pin at the points of the blind frame and take the blind frameapart in order to repair and replace a broken slat or to substitute anew one therefor.

In the accompanying drawings,-Figure 1 is an elevation of a portion of ablind and of slats therein provided with my improved tenons, a portionof one side of the blind being shown in section to disclose the tenon ofone of the slats. Fig. 2 is a detail perspec tive view of one end of aslat and of the metallic tenon, the latter being shown detached from theslat. Fig. 3 is an elevation of my improved metallic tenon, showing theYinner Fi 4 is a detail perspective view of a modifie form of tenon.sectional view of the same, showing the same attached to the end of aslat. Fig. 6 is a detail perspective view of another modification.

The tenon or journal l is tubular in form, is made preferably of sheetmetal and is open at its ends. At the inner end of saidl tenon orjournal is a base 2, which in the form of my invention shown in Figs. 1,2 and 3 is also made of sheet metal, comprising the wings 3 to bear onthe end of the slat A, the interme diate bent or looped portion 4 andprongs or points 5, which are formed integrally with the wings at theouter ends thereof and are bent at right angles thereto and adapted tobe pressed into the end of the slat to penetrate Fig. 5 is a the sameand thereby secure the base to the end of the slat, as will beunderstood. The bent or looped portion 4 forms a projection whichextends laterally from the base and is inserted in the inner end of thetubular tenon or journal, and the latter has opposite sides bentinwardly, as at 6, to form crimps which extend into the opening betweenthe sides of the bent or looped portion 4 and hence serve to secure thesaid journal or tenonto the said offset portion of the base. The saidcrimps are deepestat the inner end of the journal or tenon, and the bentor looped portion 4 of the base forms a wed e-shaped opening between thesides of said ent or looped portion, so that the crimpsof the tenon orjournal by coaction with the opposing inner surfaces of the outwardlyconverging sides of the bent or looped portion effect a secureconnection between the tenon or journal and the said bent or loopedportion, and hence the said journal or tenon is secured against casualremoval from the base. It will be understood that when the usual woodentenon or journal has been broken from the end of a blind slat myimproved metallic tenon or journal can be readily attached thereto byrst inserting the journal or tenon in the socket B in the side of theblind frame and then pressing the points 5 of the base into the end ofthe slat.

The base of my improved tenon or journal is made of spring metal, andthe tension thereof causes the wings ofthe base` to lie snugly againstthe end of the tenon after the points 5 have been inserted therein, sothat the base is prevented from buckling.

It will be understood that my improved tenon or journal is entirelyinconspicuous, so that it will not be observed when applied to the endof a blind slat to pivot the latter and need not be painted, but, ofcourse,- may be painted, if desired.

In the form of my invention shown in Figs. 4 and 5 the base 7 is a flatmetallic plate having its arms which extend in opposite directionsnarrowed outwardly and provided at their ends with points 8 which arebent therefrom for insertion in the end of a slat. The said arms of thebase are provided near the outer ends thereof with openings 9 for theinsertion of nails, screws or the like l0 to coact with the points 8 andin securing said base to the end of a slat. In the center of the said`base plate is a circular opening through which the inner end of atubular tenon or journal 11 passes, and the inner end of the saidtubular tenon or journal is swaged outwardly, as at 12, to form anannular circumferential lange which bears against the inner side of thebase plate and hence serves to secure the journal or tenon to saidplate.

In the form of my invention shown in Fig. 6 the base 13 is made of wirebent to form arms or wings 14 having points 15 at their outer ends andan intermediate offset portion 16 to enter the inner end of the tubulartenon or journal.

Having thus described the invention, what is claimed as new, is:

1. In a blind slat, a tenon or journal comprising a base having alaterally extending bend providing spaced sides, and a tubular journalhaving its inner portion on said bend of the base and provided withcrimps engaging the sides of said bend.

2. A device of the class described comprising a base to bear on the endof a slat, and having a laterally extending projection provided with anopening extending transversely thereof, and a tubular journal having itsinner portion on said projection and provided with crimps engaging thesides of the open-- ing thereof.

3. A device ofthe class described comprising a base to bear on the endof a slat and having a laterally extending projection provided with atransverse wedge-shaped opening the sides of which converge outwardly,and a tubular journal having its inner portion on said projection andprovided with crirnps engaging the sides of the opening thereof.

4. A device of the class described comprising a base to bear on the endof a slat formed with points at its ends to enter the slat and formed atits center with a laterally extending bend provided with spaced sidesand a tubular journal having its inner portion on said bend of the baseand provided withA `Witnessesz JosEPH JONES, WALTER F. JONES.

CHARLES MILLER.. i'

